class_docstr: Tests the seq2seq.models.AttentionSeq2Seq model.
    
code: def setUp(self):
      super(TestAttentionSeq2Seq, self).setUp()
      self.encoder_rnn_cell = tf.contrib.rnn.LSTMCell(32)
      self.decoder_rnn_cell = tf.contrib.rnn.LSTMCell(32)
      self.attention_dim = 128
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  from collections import namedtuple
  import yaml
  import numpy
  import tensorflow
  from seq2seq.data import vocab, input_pipeline
  from seq2seq.training import utils
  from seq2seq.test import utils
  from seq2seq.models import BasicSeq2Seq, AttentionSeq2Seq
label_desc: Use image node_id 1 for calling the TestAttentionSeq2Seq obj's underlying member method code with example usage: obj.setUp() without return types